This has always been an interesting question for me. Is it Murdoch because he was on the bridge when the ship hit? Is it the Smith because he was the Captain and refused to heed the ice warnings? How about the main villain of the time, Ismay? Or perhaps the fatal flaw is in the building and design of Andrews? What if the Marconi officers had delivered all the ice warnings they had in their possession? What about the lookouts? If anyone were to carry the heaviest burden in this tragedy who do you think it should be?